Commander Simon Letchford, of the Metropolitan Police commented: “We’ve got a number of lines of inquiry that we’re following but we believe he’s taken some sort of drug that’s had an adverse effect on him.”

Holland Park School in Kensington have paid tribute to Andrew, who was their student. A statement reads: “Rio was an able scholar, destined for academic success. He was also an exceptional sportsman and due to be awarded this Friday, a prestigious sports award. The school wishes to send its collective sympathies and respect to all of Rio’s family and friends. He will be greatly missed by the school community.”

This is the only death currently reported following the event, however a 19-year-old man remains in hospital in a stable condition. A further six people have been discharged from hospital after being admitted on the night with injuries.

A number of arrests were made in relation to the rave – nine during the event and a further five since it ended on Sunday. Of the 14 arrests, two men have been charged with violent disorder and drugs offences. Other arrests made include charges of possessions of class A drugs, money laundering, violent disorder and criminal damage.